Street-sweeping machine.



PATBNTBD vJUNE 7, 1904.

H. D. LAYMAN & FLORENCE W. PAR'IART,(BY MARRIAGE NOW FLORENCE W. LAYMAN). STREET SWEEPING MACHINE.

APPLICATION FILED JULY 17, 1.901.

vN() HODEL.

6 SHEETS-SHEET 1,

Y PATENTED JUNE 7, 1904. H. D. LAYMAN & FLORENCE W. PARPART, BY MARRIAGE NOW FLORENCE W. LAYMAN). STREET SWEEPING MACHINE.

6 SHEETS-BHEETZ.

N0 MODEL. APPLICATION FILED JULY 17. 1901.

TH: Noms PETERS co, PNoTo-L|mo.. wAsHxNGToN, u. c.

PATENTED JUNE '7, 1904.

H. D. LAYMAN z FLORENCE W. PARPART,(BY MARRIAGE NOW FLORENCE W. LAYMAN). STREET SWEEPING MACHINE.

- l APPLICATION :FILED JULY 17, 1901.

sHBBTs-SHEBT 3.

N0 MODEL.

Tne Nonms PETERS cc. PHoauwn., wAsmNcmN. D. c.

PATENTED JUNE v7, 1904.

H. D. LAYMAN & FLORENCE W. PARPART,(BY MARRIAGE NOW FLORENCE W. LAYMAN). STREET SWEEPING MACHINE.

APPLIOATION FILED JULY 17, 1901.

6 SHEETS-SHEET 4.

N0 MODEL.

ms PETERS co. PHOTO-L r PATENTED JUNE '7, 1904.

6 SHEETS-SHEET 5.

W. LAYMAN).

STREET SWEEPING MACHINE.

APPLICATION FILED JULY 17, 1901x No. 762,241. E. D. LAYMAN R FLORENCE W. PARPARREEY MARRIAGE NOW FLORENCE N0 MODEL.

\ No. 762,241. PATENTED JUNE 7, 1904. BY MARRIAGENOW FLORENCE w. LAYMAN). STREET s-WEEPING1 MACHINE.

H. D. LAYMAN & FLORENCE W. PARPART,

APPLIOATION FILED JULY 11. 1901.

6 SHEETS-SHEET 6.

NO MODEL.

Wilma/wd.-

UNITED STATES Patented June 7,1904.

PATENT OFFICE.

HIRAM D. LAYMAN .AND FLORENCE W. PARPART, (BY MARRIAGE NOW FLORENCE W. LAYMANJ OF YORK, N .`Y.I

STREET-SWEEPING MACHINE.

SPECIFICATION forming part of Letters Patent No. 762,241, dated June 7, 904.

' Appnmamfned July 17,1901.- sefiaiuo. 68,621.- orumodem i .To ally/kont z'f 711,603/ concern,.- Be it known that we, HIRAM D. LAYMAN and FLORENCE W. PARPART, citizens of the United States, residing at New York, in the county of New York and State of New York, havev invented new and usefullmprovements in Street-Sweeping Machines, of which the following is a specification. This invention relates to street-sweepers, and among the main objects inview are to; produce a comparatively light-draft machine of this class thatis adapted to efficiently gather dirt from the street-surface regardless of i'nfinally to have the machine under ready control of the driver or operator while mounted on the usual seat at the front of the machine.

Various ,other objects and advantages of the invention will hereinafter appear, and the novel features thereof will be particularly f pointed out in the claims. 'i

, Referring to the-drawings, Figurel is a side elevation of a street-sweeping machine em ubodying the invention. Fig. 2 is a longitudi-v nal sectionalview through 4the center ofthe j same. Fig. 3 1s afront elevation or end vlew i of the machine with the protectingplate for brush roll or shaft. Lspective of one of the swinging be aring-brack?A @te employed ethelwei @al Qflaeleifetol the shaft-bearings removed. Figffis atrans-- verse vertical sectional View loolfing'fromj the rear. Fig. 5 is a. top plan view with the canvas cover and elevator mechanism :re-f moved. Fig. 6 is a detail in sectioiif th bearing employed in thecounter and,l main shafts. of the elevator, illustrating the dr vdng'i and? clutch-shifting mechanism. lFig." 811s *ai sectional view showing the lend fthe Fig. 9 i`s aide't'ail-/iii per Fig. 10 isa detailinperspective of a series of the apron-sections, the view being taken from the rear andillustrating their mode of connection with the lower end of the elevator. Fig. 11 is a detail of one of the apron-sections, the View being .taken from` the underside. Fig. 1,2 is a front elevationof the lever. for operating the transverse discharge-apron.

Like characters of reference indicate like parts in ally the figuresr of the drawings.

Upon a suitable running-gear, comprising the usual front wheels 1 andv rear wheels 2, is supported onV sills-(hereinafter referred to) thefwagon or body portion 4. The wagon or body 'fportion may be, and preferably is, subdivided longitudinally', .forming an upper and a lower compartment, (designated as 5 and 6, respectively.) The upper compartment is the dirt-receptacle and in ther present instance is provided at one side with a downwardly and outwardly swinging door 7, hinged at its lower edge, as at 3, whereby when lowered it vmay' serve as a chute. The lower compartment forms the water compartment or tank, which may be filled in the usual manner from any of the city water-plugs. It may be provided at its front with a suitably-covered manhole 6, through which access may be had to its interior. Aside from these features and the water-discharge, hereinafter referred to, aseat 8 isl providedV for the driver, adjacent to which the various levers, &c., are arranged for controlling the sweeping, dirt-receiving,

f In thev bottom ofthe upper or dirt receptacle 5 and journaled' in the ends thereof is a series of parallel shafts 9', thesame carrying `rol ls 9, having mounted thereon at opposite ends '.sprocket'wheels 10.l An endless transverselyjm'ovable apron: 11,` upon which cleats are located atintervals, is secured to sprocketc'hains 12, thatpass over the said sprocketwheels, so'that, as `will be obvious, lthe shafts and' apron move-together in a direction transverse the receptacle. .The frontend 9 of one -of these end shafts QeXtendsbeyond its bearing andthe fro'nt wallof the wagon, at which point it has mountedthereona ratchet-whcel 13. Aliand-lever 14C-gis loosely mounted on dumping, sprinkling, and clutch mechanisms.

said shafty adjacent said ratchet-wheel, and a loose gravity-pawlg 1.5 carried by the handllever, engages the teeth of said ratchet-wheel. It is obvious that the driver or operator while mounted upon his seat may grasp and vibrate the hand-lever 14, and the swinging door being lowered the dirt or 4sweepings will be directed to the same by the thus operated or fed discharge-apron, the door serving as an inclined chute down which the accumulated dirt or sweepings will be directed into the waiting adjacent cart. A plate 7 d (see Fig. 2) may be employed to cover the front ends of the shafts 9 and their bearings, and said plate being removable access to the bearings for lubricating and other purposes is obtainable.

As before stated, the door is hinged'at its` lower edge and may, if desired, be limited in p its downward swing by a pair of chains 7e. When elevated, the door may be locked by any suitable means, but preferably by a series of bell-cranks 7, fulcrumed on the side of the wagon-body and all connected to move able, preferably canvas, covering 18, for the support of which latter arched bails 181 are provided. dournaled in the upper ends of the sides 16 1s a transverse shaft 19, the same having itsends extended beyond their bear.

ings and provided with fixed pulleys 2O 20". Said shaft is alsoprovided with two fixed pulleys 21, arranged intermediate of said for# mer pulleys.

At the front end of the dirt-receptacle a transverse shaft 22 is located, one endof which projects beyond its bearing and carries at that point a iixed sprocket-wheel 23. In the rear upper end `of the 'dirtfreceptacle a companion roll or shaft 231L is journaled, the same being located below the upper transverse shaft of the elevator. and 23*L are connectedby a pair of suitable belts 24, the same being connected at intervals by transverse flights 24, the said beltsy receiving motion from the rolls upon which they are mounted, the forwardrollbeing driven through the medium of a belt 24", which connects the pulley 23 Vwith the pulley 2O` of the elevator. It will be obvious that dirt or sweepings delivered from the upper end of the elevator into the receptacle will after rising to a certain point be carried 'forward by said flights 24, and thus leveled or v distributed evenly instead of being allowed to accumulate at the delivery-pointHnamely, the rear end of the dirt-receptacle.

The wagon-body, as stated, is supported upon a pair of longitudinal sills 29, the latter rlhe shafts 22 being preferably curved downwardly at their rear endsand securely bolted to the llower end of the elevator-frame, whereby the latter is rigidly supported.

Universally journaled in the lower end of the elevator-frame, preferably in yokes 27, isV

34b pass over the intermediate sprocket-wheels v of the shaft 1'9-and also over and around the rollers 34', andsuch belts are connected at intervals, and therefore support, so as to move over and scrape upon the bottom of the elevator, a series of cross-flights 35, which are adapted to elevate the dirt or sweepings as they are collected'and delivered to the lower end of the elevator. A belt-tightener 36, of the ordinary type, is located against the sprocket-chain 33, and, in fact, such tighteners, so designated, may be'located at any point where their functions'aredesired.

Supported by and vlocated within a-U-shaped bail or frame 37l and immediately in rear -of theelevator is a half-round hood 40. The UY-sbapedfbailor frame 37'is pivoted, as at 38, on the ends o f the hood, the rear end of said baillbeing supported upon a pair ofswiveled casters 39,- which se-rveas fulcrums when the front of" the bailv is elevated.' This hood is connected at its opposite ends to the terminals ofthe bail` or frame back ofits pivotpoints 38 in some simple manner that will permit of vertical` adjustmentv ofl the hood. In the present instance a-,pair of rods 41 are employed for'this purpose. These :rods have eyes 42 at their lower endsdesigned lto engage studs 43, that project from the bail-terminals. The upper ends of' the rods are threaded and pass loosely through brackets 44, in which latter are seated hand-wheels or nuts 45,- that receive the upper threaded ends of the rods and work upon the same. As will be obvious, the vhood 40 may be adjusted `with relation to theba-il by this simplemechanism, and thus the hood maintained-in proper `relation to the brush-roll hereinafter described.

Beyond the pointsof pivot between the ends of the hood 40 andthe terminals of the bail or frame the ends of the terminals-,of theV bail or framek are by short chains 46y connectedv to opposite bell-crank levers 47 fu'lcrumed on the opposite sides of the elevator. Chai-ns 48 lead from the forward ends of these 'bell-cranks to a suitable hand-lever 49,A located at one side of, and therefore readily laccessible to, the driver, so that the bail or frame, the hood, and

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all mechanism carried thereby or connected ,thereto may be readily elevated or lowered provided with a series of holes fr, whereby they may be adjustedlongitudinally with relation to the elevator. Journaled in preferably universal bearings 50, formed in these bars, (see Fig. 8,) is a brush-shaft 51, the same being under cover of the hood 40, the ends of the latter being provided with openings for the accommodation of said shaft. One end of the brush-shaft extends beyond its bearing and is there provided with a pulley 52, abelt 53 leading from the same to the driving-pulley 31 of the main shaft. 54 may be mounted between the two sprockets.

The rear wheel 2 is utilized as the driver or driving-wheel, and uponthe hub of the same `is mounted a pulley 55. Y A counter-shaft 56 is universally journaled in rear thereof in thev yoke-bearing before mentioned, and upon this shaft is mounted a pulley 57 and a spur-gear 58, the former being connected by a belt 59 with the pulley 55 of the drive-wheel and the spur-gear meshing with the companion-gear 60, located on the main drive-shaft 30, wherebya proper direction of motion is given the said main shaft. It will be observed that motion is imparted to the counter-shaft 56 by means of belt 59 and transmitted to shaft 30 through gears 58 and 60. The pulley 31 on shaft 3() transmits motion to the brush, andv pulley 32 transmits motion to the elevatorflights through the medium of shaft 19 and pulleys 20 and 21.

rlhe inclined apron or pan 61, up which the dirt or sweepings is swept by the brush to the elevator, preferably comprises a series of independently-movable sections 62, the series being flexibly connected or hinged at their upper ends to andoverlapping the lower end of the elevator-bottom by means of leather hinges 63. The under side of each section is provided with an eye or loop 64, alifting-rod passing loosely through such eyes or loops of the entire series.V The ends of the rod extend beyond the gang of pans or apron and wisely-disposed sprinkling-pipe 68, located Any ordinary belt-tightener in advance of the pans, the supply being regulated by a cock 68, operated by a connectingrod 68", connected thereto and to a foot-lever 68c at one side of the seat for the driver.

The spur-gear 60 of the main shaft 30 has a toothed hubl 69, the said gear being loose on the shaft. At one side thereof there is splined on the same shaft a clutch-sleeve 7 O, designed to be thrown out of operative connection with the said hub. This clutch mechanism may be operated in any desired manner; but for the purpose of simplifying thelabor of the driver it is preferred to employ a bell-crank lever 71, which is pivoted under the body of the wagon. One end of the bell-crank lever is loosely connected with the sliding clutchsleeve, while the other end is, by a chain or cable 72, connected to one branch of an intermediate bell-crank 73, locatedat the side of the wagon and connected at its remaining endto the chain for lifting the hood, brush, apron, or pan, &c. A coiled spring 74 serves to normally connect the clutch-sleeve with the toothed hub of the spur-gear. It will be apparent that the single operation of the handlever by the driver stops the operation of the machine, as well as elevates the mechanism just referred to.

The counter and main drive shafts are, as

before stated, preferably-mounted in a pair of bearing-yokes, and the bearing-openings therein, like those for thevsupportof the brush, are, as shown in Fig. 6, concaved to receive spherical or round balls 75, which are bored radially for the shafts.

The apparatus in practice careens as it meets with obstructions or drops into depressions in the roadway, and for this reason it has been found necessary to provide a loose journal for each and all of the shafts that would otherwise be subjected tostrains. Of course any well-known construction of loose shaft connection and bearings may be substitutedfor those shown, if preferred.

From the foregoing it will be apparent that we secure the several objects of our invention in that we produce a light-draft machine of simple construction that will sprinkle, sweep, and clean a street-surface in a most eiiicient manner, that is readily controlled and operated by the driver while seated on the seat provided for him and while handling his team, and all without the scattering of dust, dirt, and disease germs.

Various changes may be made in our invention as regards the details of construction, vand we therefore do not limit the invention to the exact details herein shown and described, but maintain that such ordinary changes are all comprehended in our invention without specific mention.

1. In combination, in a street-sweeping machine, a body portion having a side discharge,

and means for elevating and discharging dirt.

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disposed rolls, bearings and journals therefor,

Aan endlcss'apron arranged upon the rolls, a

lever loosely mounted on the journal of one of the rolls, a pawl carried by the lever, and a ratchet-wheel mounted on said journal and adapted tovbe operated by the vibrations of said lever.

2. In combination, in a streetfsweeping machine, a body portion having a dirt-receptacle provided with a lateral side dischargaan endless apron located on the `bottom thereof, andmeans for feeding the same towardtlie discharge', an elevating mechanism discharging in to the receptacle, endless belts supported above the apron and provided with, transverse flights, and means for continuously operating the same. 3. A street-sweepingmachine 'comprising a body portion havinga dirti-receptacle, ya pair of sills for supportingsaid bodyportion and having downwardly-curved ends, brackets'sey cured to said body portionand dirt-receptacle in line with the curved ends of said sills, and an elevatorfframe supported said'curve'd ends and said brackets. i 4 4. A street-sweeping maehine comprising abody portion, a bail or frame havingeasters,

a hood carried thereby, pivote'd bearing-'bars also connected toY said hood, la brush'mounted -in said bars,` an apron,connections l' between the same and said ybearing-bars, and means `for raising' the forward ends of said bail or frame whereby said bnush and apronare raised simultaneously therewith. 5. A street-sweeping machine comprising a body portion ,fa bail or frame having casters, a hood'carried` thereby, pivoted bearing-bars ,also eonnected to said liood,a brushfmounted in said bars, anapron composed of a series of flexibly-mounted sections, varod passed thereunder, chains connecting said rod and said bearing-bars, and means for raising the .forward ends of said bail or frame whereby said -brush and` rod ,are simultaneously elevated therewith.

6. A street-sweeping machine comprising a body portion, a bail or framehaving casters, a hood carried thereby, pivoted bearing-bars also connected to said hood, means for adjusting said bearing-bars longitudinally, a brush mounted in said bearing-bars, anda panor apron connected to said body portion.

7. In combination, in astreet-sweepingmachine, a U-shapcd bail provided at its rear t end with casters adapted to serve as fulcrums,

a sweeping mechanism connected to the bail, and means for elevating the front ends or terminals of. the bail.

8. In combination, in astreet-sweeping machine,abody portion, a U-shaped bail or frame. casters supporting the rear end thereof and adapted to serve as fulerums, a pair of framebars pivoted to the machine and located below the bail or frame vand loosely connected thereto at their rear ends, a brush carried by the said bars, bell-cranks pivotedr'ithefblody portion, a lev'er fulerumed onthefbody portion", and chains connectingthe l'ever with the bell-cranks and the latter with the fibntterminals of thebail or frame.`

9. In combination, inra street-sweeping machine,`abody'port`ion a U-shaped bail or frame, casters supporting tlie rear end thereof 'and adapted to serve as fulcrums, a'pa'ir of framebars pivoted to the machine and "located below the bail or frame `l and loosely 'connected thereto at theirrear` ends, abrush carried by lsaid bars, belli-cranks'pivoted'ont'lfebody'portion', a lever ful'ci'umed on'the body portion, an apron loosely supported belowthe bars, chains connecting the bars and shovels, lanvd'lchains t between ythe level' and bell-cranks and between the latteriTand"l thelffilont ends of the bail.'

' IO. lIn combination, 'in a street-sweeping n machine,a bo'dypo'r'tion, a rear bail or frame, casters supporting'the rear end thereof a'nd adapted 'toserve "asl fu'lerumsrahbod surimounting' the bail, a lever, connections between the 'same and the front terminals ofthe `bail,f4and 'abrush mechanism adapted to be jvelevated bythebailf "t 11. In? combination in a street-sweeping rnachirieLa body portion, a rear bail or frame ftving projecting studs, casters supporting said ba1l or frame, ahood car'r'ied by said bail o'r frame and' having brackets,"l threaded rods 'Y passed through said brackets'and having eyes engaging said stiids,'and nutsy werkingen said 12. ,In combination in a street-sweeping machine, a bodylportion comprising a dirti-'re- "ceptacle, an relevator'frame',r 'an felevator Vcarried by' said frame and' leading to said 'dirt-ret CeptacIe, an apron pivoted to ytlie'lower end of lsaid elevator-frame, a rod 'passed wthereunder, a brush mechanism, supports therefor Lalso mounted on 'said'elevator-framel connections between said rods and'saidsupportsfand means for raising and lowering said supports. 13. In Vcombination, in a street-svweepir'ig machine, van elevator-frame, asliaft carrying "sprocket-'wheels journale'd at "the upper end thereof, a 4pair of loosely-supportedguiderollers at the lower end of the elevator-frame, a pair'fof sprocket-chains passing over the sprocket-*wheels .and rollers,^intermecliate guidesfor the chains, flights connecting said chains,` and 4means for driving the upper shaft. 14. In combination, in a vstreet-sweeping machine, an elevator-frame, 'a shaft having sprocket-wheels journaled at the upper end thereof, a pair of loosely-hung brackets provided with guide-rollers in thelower end of the elevatorlframe,intermediate guid e-cleats, sprocket chains passed over i the rollers, sprocket-wheels and guides, and means for giving motion to thechains. i

15. In a'street-fsweeping machine, a body portion, a sweeping mechanism, a'swinging IOO IIO

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support therefor, a main shaft arranged to operate said sweeping mechanism, means for rotating said main shaft, a clutch on said main shaft,- an operating-lever therefor, a lever pivoted to said body portion,a chain running therefrom to said swinging support, a bell-crank lever also pivoted to said body portion and having one member connected to said chain, and a second chain running from the other member of said bell-crank lever to said clutch-lever.

16. In a street-sweeping machine, a body portion provided with a dirt-receptacle, an elevator emptying'therein, a sweeping mechanism, a main shaft arranged to operate said sweeping mechanism, means for rotating said main shaft, a clutch on said shaft, an operating-lever therefor, means for raising said sweeping mechanism, and a bell-crank lever having connection with the operating-lever of said clutch and also with said raising means.

17. In a street-sweeping machine, a body portion, a sweeping mechanism, a swinging support therefor, a pivotally-supported apron, connections between the same and said sweeping mechanism, a main shaft arranged to operate said sweeping mechanism,means for rotating said shaft, a clutch on said shaft, an operating-lever therefor, means for raising said sweeping mechanism and said apron, and a bell-crank lever having connection with the operating-,lever of said clutch and also with said raising means.

18. In a street-sweeping machine, the combination of a brush, a pan to receive sweepings from the brush, a closed receptacle for the sweepings, elevating-buckets to carry the sweepings from the pan and discharge them into one end of the receptacle,amovable endless leveling device in the upper portion of the receptacle to move the sweepings toward the other end of the receptacle, means for moving the buckets, and means for moving the leveling device, substantially as set forth.

In testimony whereof we affix our signatures in presence of two witnesses.

HIRAM D. LAYMAN.- FLORENCE W. PARPART.

Vitnesses:

W. S. DUVALL, GRAFTON L. MCGILL. 

